CN114864990B - Method for preparing single cell of fuel cell - Google Patents
Method for preparing single cell of fuel cell Download PDFInfo
- Publication number
- CN114864990B CN114864990B CN202210593854.XA CN202210593854A CN114864990B CN 114864990 B CN114864990 B CN 114864990B CN 202210593854 A CN202210593854 A CN 202210593854A CN 114864990 B CN114864990 B CN 114864990B
- Authority
- CN
- China
- Prior art keywords
- rubber
- plate
- single cell
- water cavity
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 27
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 229920001971 elastomer Polymers 0.000 claims abstract description 67
- 239000003292 glue Substances 0.000 claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000853 adhesive Substances 0.000 claims abstract description 23
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 26
- 239000000565 sealant Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000013040 rubber vulcanization Methods 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 238000013007 heat curing Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 229920002943 EPDM rubber Polymers 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229920000800 acrylic rubber Polymers 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 235000012773 waffles Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0286—Processes for forming seals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
- H01M8/0284—Organic resins; Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a preparation method of a single cell of a fuel cell, which comprises the following steps: a water cavity sealing glue line is formed by glue injection or glue dispensing at the position of a sealing groove at the water cavity side of the anode plate; smearing liquid adhesive in the sealing grooves at the air cavity side of the cathode plate and the air cavity side of the anode plate, and respectively placing rubber raw rubber sheets on the liquid adhesive on the cathode plate and the anode plate; the limiting plates are respectively arranged between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode; coating a liquid adhesive on the corresponding position of the membrane electrode and the rubber raw sheet; the assembly of the single cells is completed by heat curing. By adopting the structural form, the machining error of the sealing groove of the polar plate can be filled through the thickness tolerance of the sealing glue line, so that the carbon paper is completely and completely contacted with the flow passage of the reaction area, the contact resistance in the pile is thoroughly reduced, and the thickness of the sealing glue line can be changed by controlling the thickness of the limiting plate, so that the ideal contact resistance of the whole pile is achieved.
Description
Technical Field
The invention relates to a preparation method of a single cell of a fuel cell.
Background
The sealing structure design in the field of fuel cells is very necessary, and has great influence on the safety, service life, efficiency and the like of the electric pile. In the prior art, fuel cells generally have two sealing modes, one is to add a sealant line or a sealing gasket on an anode plate and a cathode plate of a bipolar plate of the fuel cell, and seal is directly formed on the surface of the bipolar plate by assembly pressure during assembly; the method has the advantages that the sealant wire is not easy to bond with the bipolar plate in the assembly process and the later use process, and is easy to slide and misplace, the size of the sealant wire is not uniform, and the sealant wire is easy to seal and lose efficacy, so that the airtight property of a galvanic pile is affected; the other mode is to form an elastic sealing layer on the surface of the polar plate by using liquid silica gel in an injection molding mode, and then seal the polar plate by assembling pressure in the assembling process, but the liquid silica gel mold has higher price and is not mature in the fuel cell preparation process.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, a sealant wire is not easy to bond with a bipolar plate in the assembly process and the later use process, is easy to slide and misplace, is nonuniform in size and easy to seal and lose efficacy, and further influences the airtight property of a galvanic pile.
The invention solves the technical problems by the following technical scheme:
the invention discloses a preparation method of a single cell of a fuel cell, which comprises the following steps: a water cavity sealing glue line is formed by glue injection or glue dispensing at the position of a sealing groove at the water cavity side of the anode plate; smearing liquid adhesive in the sealing grooves at the air cavity side of the cathode plate and the air cavity side of the anode plate, and respectively placing rubber raw rubber sheets on the liquid adhesive on the cathode plate and the anode plate; respectively placing limiting plates between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode; coating a liquid adhesive on the corresponding position of the membrane electrode and the rubber sheet; the assembly of the single cells is completed by heat curing.
In the scheme, the water cavity adopts a rubber sealing mode, so that corrosion of the metal plate in the welding process is prevented; the air cavity adopts a bonding sealing mode, so that the sliding and air leakage risks of the rubber line are avoided, and the sealing performance of the air cavity is improved. By adopting the structural form, the machining error of the sealing groove of the polar plate can be filled through the thickness tolerance of the sealing glue line, so that the carbon paper is completely and completely contacted with the flow passage of the reaction area, the contact resistance in the pile is thoroughly reduced, and the thickness of the sealing glue line can be changed by controlling the thickness of the limiting plate, so that the ideal contact resistance of the whole pile is achieved.
Preferably, before the step of placing the limiting plates between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode, respectively, the preparation method further includes: selecting a sheet; and manufacturing the sheet into the limiting plate matched with the membrane electrode frame.
In the scheme, the sealing glue line has the advantages of simple production process and low production cost, and can flexibly match the early thickness of the galvanic pile, thereby ensuring that the sealing glue line can reach the ideal thickness.
Preferably, before the step of smearing the liquid adhesive in the sealing groove at the air cavity side of the cathode plate and the sealing groove at the air cavity side of the anode plate and placing the rubber raw rubber sheets on the liquid adhesive on the cathode plate and the anode plate respectively, the preparation method further comprises: selecting a rubber compound and making it into said rubber stock; cutting the rubber stock to match the rubber stock with the sealing groove on the air cavity side.
In the scheme, the structural form is adopted, the characteristic of good compression permanent deformation of the rubber compound is utilized, and the sealing reliability of the whole pile is ensured.
Preferably, the step of injecting or dispensing the glue into the sealing groove at the water cavity side of the anode plate to form a water cavity sealing glue line includes: injecting or dispensing rubber at the position of the sealing groove at the water cavity side of the anode plate; and heating the rubber after glue injection or glue dispensing so as to solidify the rubber to form the water cavity sealing glue line.
Preferably, the step of heating the rubber cures the rubber to a heating temperature of 150 ℃ in the water cavity sealant line.
Preferably, the step of heating the rubber to solidify the rubber to form the water cavity sealant line has a heating time of 5min-60min.
Preferably, the step of completing the assembly of the single cells by curing comprises: spreading the cathode plate, the limiting plate, the membrane electrode, the limiting plate and the anode plate in the single cell die in sequence; vulcanizing and forming the single cell die through a rubber vulcanization process; and taking out the limiting plate to complete the assembly of the single cell.
Preferably, the step of vulcanization molding the single cell mold by the rubber vulcanization process includes: a heating area is arranged at the position of the water cavity sealant line in the single cell die; and setting a cold area region at a proton exchange position in the single cell die.
Preferably, the step is to set the pressure in the heating area at 0.5MPA-2MPA, the temperature at 90-150 ℃ and the heating curing time at 5-30 min for the water cavity sealant line position in the single cell die.
Preferably, the step sets the temperature in the cold zone region to 50 ℃ or lower for the proton exchange site in the single cell mold.
The invention has the positive progress effects that:
the water cavity adopts a rubber sealing mode, so that corrosion of the metal plate in the welding process is prevented; the air cavity adopts a bonding sealing mode, so that the sliding and air leakage risks of the rubber line are avoided, and the sealing performance of the air cavity is improved. By adopting the structural form, the machining error of the sealing groove of the polar plate can be filled through the thickness tolerance of the sealing glue line, so that the carbon paper is completely and completely contacted with the flow passage of the reaction area, the contact resistance in the pile is thoroughly reduced, and the thickness of the sealing glue line can be changed by controlling the thickness of the limiting plate, so that the ideal contact resistance of the whole pile is achieved.
Drawings
Fig. 1 is a flowchart of a method of manufacturing a single fuel cell in an embodiment of the invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
The embodiment discloses a preparation method of a single cell of a fuel cell, which is used for solving the problems that a sealant wire is not easy to bond with a bipolar plate in an assembly process and a later use process and is easy to slide and misplace, the size of the sealant wire is not uniform, and the sealant wire is easy to seal and lose efficacy, so that the airtight characteristic of a galvanic pile is affected.
As shown in fig. 1, the preparation method comprises:
s1, forming a water cavity sealing glue line by glue injection or glue dispensing at a sealing groove at the water cavity side of an anode plate; specifically, the sealing groove at the water cavity side adopts a rubber sealing mode, so that the corrosion phenomenon of the metal plate in the welding process is avoided.
S2, smearing liquid adhesive in a sealing groove at the air cavity side of the cathode plate and a sealing groove at the air cavity side of the anode plate, and respectively placing rubber raw rubber sheets on the liquid adhesive on the cathode plate and the anode plate; specifically, the sealing groove at the air cavity side adopts a bonding sealing mode, so that the sliding and air leakage risks of the rubber line are avoided, and the sealing reliability is improved.
When the adhesive is specifically used, the type of the adhesive is mainly an adhesive special for acrylic rubber or epoxy rubber compound.
S3, respectively placing limiting plates between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode; specifically, the air cavity sealant wire is firstly placed in the gap between the anode plate and the membrane electrode frame or between the cathode plate and the membrane electrode frame by adopting a limiting plate with a certain thickness in the mould pressing process, so that the thickness of the sealant wire is ensured to be required. The thickness of the sealant line can be changed according to the thickness of the control limiting plate in the preparation process; for different single cells, the thickness of the sealant line can be adjusted according to the performance of the cell; for mass production, the thickness of the limiting plate can be quickly adjusted according to the ideal thickness to be achieved by the sealant line, and the limiting plate is suitable for use in the earlier development stage and can also be produced in batches.
Step S4, smearing liquid adhesive on the corresponding positions of the membrane electrode and the rubber raw sheet; in particular, the structural form ensures that the membrane electrode and the rubber green sheet can be bonded after being cured.
When the adhesive is specifically used, the type of the adhesive is mainly an adhesive special for acrylic rubber or epoxy rubber compound.
And S5, completing the assembly of the single cells through solidification.
By adopting the structural form, the processing error of the sealing groove of the polar plate can be filled up through the thickness tolerance of the sealing glue line, so that the carbon paper is completely and completely contacted with the flow passage of the reaction area, and the contact resistance in the pile is thoroughly reduced. The structural form can also compensate the uneven curve of the cathode plate or the anode plate in the processing process by the thickness tolerance of the sealant line, so that the gas diffusion layer and the reaction zone can be fully contacted, and the contact resistance in the electric pile can be optimized. Meanwhile, the production process is simple, the production cost of the die is low, the problem of thickness matching of the galvanic pile in the early stage can be flexibly solved, and the method provides a practical manufacturing for mass single cell production in the later stage.
In specific use, step S3 needs to precede step S4, but the order of step S3 and steps S1 and S2 is not limited to the order in the present embodiment. That is, in other embodiments, step S3 may also precede step S1 or step S2.
Before step S3, the preparation method further includes:
selecting a sheet; specifically, the thickness of the sheet is 0.1-1mm, and the sheet is made of stainless steel. In other embodiments, the material of the sheet may be of other types, and the thickness of the sheet may be selected according to the corresponding relationship between the thickness of the desired sealant line and the thickness of the limiting plate.
And manufacturing the sheet into the limiting plate matched with the membrane electrode frame. By adopting the structure, the sealing glue line has the advantages of simple production process and low production cost, and can flexibly match the early thickness of the galvanic pile, thereby ensuring that the sealing glue line can reach the ideal thickness.
Before step S2, the preparation method further includes:
selecting a rubber compound and making it into said rubber stock; specifically, rubber compound with hardness of 30-65A and compression set less than 10% is selected to prepare rubber raw rubber sheet with certain thickness of 0.2-1mm, and the rubber compound comprises silicone rubber, EPDM rubber, fluororubber and the like.
Cutting the rubber stock to match the rubber stock with the sealing groove on the air cavity side.
By adopting the structural form, the characteristic of good compression set of the rubber compound is utilized, and the sealing reliability of the whole galvanic pile is ensured.
The step S1 comprises the following steps:
s11, injecting or dispensing rubber at the position of a sealing groove at the water cavity side of the anode plate;
and step S12, heating the rubber after glue injection or glue dispensing so as to solidify the rubber to form a water cavity sealing glue line. Wherein the heating temperature is 150deg.C, and the heating time is 5min-60min.
The step S5 comprises the following steps:
step S51, tiling the cathode plate, the limiting plate, the membrane electrode, the limiting plate and the anode plate in the single cell die in sequence;
s52, vulcanizing and forming the single cell die through a rubber vulcanization process; specifically, a heating area is arranged at the position of a water cavity sealant line in a single cell die, the pressure in the heating area is 0.5MPA-2MPA, the temperature is 90-150 ℃, and the heating curing time is 5-30 min; a cold zone region is provided for the proton exchange site in the cell mold, and the temperature in the cold zone region is 50 ℃ or less. By adopting the structure, the damage of the proton exchange membrane caused by overhigh temperature is avoided.
And step S53, taking out the limiting plate to complete the assembly of the single cell.
When the electric pile is specifically implemented, the membrane electrode is prevented from being polluted and physically and mechanically damaged in the disassembly and assembly process by the structural form, the leftover materials are recyclable, the material waste is reduced, the material cost is effectively controlled, the assembly modularization of the electric pile, the disassembly and replacement are more convenient, the efficiency is higher, the electric pile is more suitable for mass production, and the production cost of the whole pile is reduced.
Example 1
Selecting a bi-component liquid silicone rubber for injection with the viscosity of 10 x 104mPa.S@25 ℃, for example, a waffle rubber is subjected to an injection process at a water cavity side sealing groove position of an anode plate, and heating is carried out for 5min at 150 ℃ to solidify the silica gel, so that a water cavity sealing gel line is formed;
selecting EPDM rubber compound with the hardness of 30-65A and the compression set of 7%, preparing rubber raw rubber sheets with the thickness of 0.5mm, and cutting into required sealing shapes for later use;
selecting stainless steel sheets with the thickness of 0.5mm to manufacture limit plates similar to the shape of the membrane electrode frame, and placing the stainless steel sheets on two sides of the membrane electrode frame;
the method comprises the steps of selecting a LETAIC acrylic adhesive matched with EPDM rubber compound to be respectively coated in a sealing groove at the air cavity side of a cathode-anode plate and a corresponding sealing position on a membrane electrode frame;
spreading the cathode plate, the limiting plate, the membrane electrode, the limiting plate and the anode plate in the single cell die in sequence;
a heating area is arranged at the relevant position of the sealant line of the single cell die, a cooling area is arranged at the relevant proton exchange area, and the single cell die is heated and solidified for 20min under the pressure of 1MPA and the temperature of 120 ℃; the temperature of the cooling area is set at 45 ℃;
and (5) extracting the stainless steel limiting plate, and completing the single cell assembly.
Example 2
Selecting triple bond rubber with the hardness of 35A and the compression set of 9 percent for a dispensing process, and heating at 150 ℃ for 30min to solidify the rubber to form a water cavity sealing rubber line;
selecting fluororubber compound with the hardness of 55A and the compression set of 10 percent, preparing a rubber raw rubber sheet with the thickness of about 0.8mm, and cutting into a required sealing shape for later use;
selecting stainless steel sheets with the thickness of 0.8mm to manufacture limit plates similar to the shape of the membrane electrode frame, and placing the stainless steel sheets on two sides of the membrane electrode frame;
acrylic adhesives matched with the EPDM rubber compound are respectively coated in the sealing grooves at the air cavity sides of the cathode and anode plates and corresponding sealing positions on the frames of the membrane electrodes;
spreading the cathode plate, the limiting plate, the membrane electrode, the limiting plate and the anode plate in the single cell die in sequence;
a heating area is arranged at the relevant position of the sealing glue line of the die, a cooling area is arranged at the relevant proton exchange area, and the die is heated and solidified for 30min at the temperature of 130 ℃ under the pressure of 1.5 MPA; the temperature of the cooling area is set at 45 ℃;
and (5) extracting the stainless steel limiting plate, and completing the single cell assembly.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (8)
1. A method of manufacturing a single fuel cell, comprising:
a water cavity sealing glue line is formed by glue injection or glue dispensing at the position of a sealing groove at the water cavity side of the anode plate;
smearing liquid adhesive in the sealing grooves at the air cavity side of the cathode plate and the air cavity side of the anode plate, and respectively placing rubber raw rubber sheets on the liquid adhesive on the cathode plate and the anode plate;
respectively placing limiting plates between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode;
coating a liquid adhesive on the corresponding position of the membrane electrode and the rubber sheet;
completing the assembly of the single cells by heating and curing;
the step is that a limiting plate is respectively arranged between the anode plate and the membrane electrode and between the cathode plate and the membrane electrode, and the preparation method further comprises the following steps:
selecting a sheet;
the sheet is made into the limiting plate matched with the membrane electrode frame;
the step of completing the assembly of the single cell by curing comprises:
spreading the cathode plate, the limiting plate, the membrane electrode, the limiting plate and the anode plate in the single cell die in sequence;
vulcanizing and forming the single cell die through a rubber vulcanization process;
and taking out the limiting plate to complete the assembly of the single cell.
2. The method of manufacturing a single cell for a fuel cell according to claim 1, wherein the step of applying the liquid adhesive in the seal groove on the air chamber side of the cathode plate and the seal groove on the air chamber side of the anode plate and before placing the raw rubber sheet on the liquid adhesive on the cathode plate and the anode plate, respectively, further comprises:
selecting a rubber compound and making it into said rubber stock;
cutting the rubber stock to match the rubber stock with the sealing groove on the air cavity side.
3. The method of manufacturing a single cell for a fuel cell according to claim 1, wherein the step of injecting or dispensing the seal groove on the water cavity side of the anode plate to form a water cavity seal line comprises:
injecting or dispensing rubber at the position of the sealing groove at the water cavity side of the anode plate;
and heating the rubber after glue injection or glue dispensing so as to solidify the rubber to form the water cavity sealing glue line.
4. The method of manufacturing a fuel cell unit cell according to claim 3, wherein the step of heating the rubber to a heating temperature of 150 ℃ in the step of curing the rubber to form the water cavity sealant line.
5. The method of manufacturing a single cell for a fuel cell according to claim 4, wherein the heating time in the step of heating the rubber to cure the rubber to form the water cavity sealant line is 5min to 60min.
6. The method for manufacturing a single cell of a fuel cell according to claim 1, wherein the step of vulcanization molding the single cell mold by the rubber vulcanization process comprises:
a heating area is arranged at the position of the water cavity sealant line in the single cell die;
and setting a cold area region at a proton exchange position in the single cell die.
7. The method for manufacturing a single cell of a fuel cell according to claim 6, wherein the step of setting the pressure in the heating area to 0.5MPA-2MPA at 90 ℃ to 150 ℃ for 5min to 30min for the water cavity sealant line position in the single cell mold.
8. The method for producing a single cell for a fuel cell according to claim 6, wherein the step of setting the temperature in a cold zone region to 50 ℃ or lower is performed on the proton exchange site in the single cell mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593854.XA CN114864990B (en) | 2022-05-27 | 2022-05-27 | Method for preparing single cell of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593854.XA CN114864990B (en) | 2022-05-27 | 2022-05-27 | Method for preparing single cell of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114864990A CN114864990A (en) | 2022-08-05 |
| CN114864990B true CN114864990B (en) | 2023-11-28 |
Family
ID=82640636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210593854.XA Active CN114864990B (en) | 2022-05-27 | 2022-05-27 | Method for preparing single cell of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114864990B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510770A (en) * | 2002-12-23 | 2004-07-07 | ƽ | Sealing structure of fuel battery |
| CN101420037A (en) * | 2008-12-10 | 2009-04-29 | 新源动力股份有限公司 | Metal bipolar plate for proton exchange membrane fuel cell |
| CN101834282A (en) * | 2010-05-24 | 2010-09-15 | 昆山弗尔赛能源有限公司 | Half-cell component of fuel cell and manufacturing method thereof |
| CN103515622A (en) * | 2013-08-02 | 2014-01-15 | 清华大学 | Membrane electrode for fuel cell and preparation method thereof |
| CN108550886A (en) * | 2018-06-07 | 2018-09-18 | 锋源新创科技（北京）有限公司 | A kind of pem fuel cell stack adhering and sealing method |
| CN110400944A (en) * | 2019-06-28 | 2019-11-01 | 上海电气集团股份有限公司 | A kind of encapsulating method and sealing structure of fuel cell membrane electrode and frame |
| CN110474068A (en) * | 2019-08-05 | 2019-11-19 | 上海电气集团股份有限公司 | A kind of preparation method of fuel cell vulcanized sealant |
| CN209658314U (en) * | 2019-04-25 | 2019-11-19 | 重庆宗申氢能源动力科技有限公司 | A kind of integrated tooling of fuel cell membrane electrode assembly |
| CN110581287A (en) * | 2019-09-09 | 2019-12-17 | 上海骥翀氢能科技有限公司 | Metal bipolar plate of proton exchange membrane fuel cell adhesion-free sealing structure |
| CN111224124A (en) * | 2020-03-05 | 2020-06-02 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN111640972A (en) * | 2020-06-02 | 2020-09-08 | 浙江锋源氢能科技有限公司 | Membrane electrode, single cell assembly and fuel cell stack |
| CN213223031U (en) * | 2020-09-02 | 2021-05-18 | 爱德曼氢能源装备有限公司 | Fuel cell seals adhesive deposite device |
| CN213542994U (en) * | 2020-11-03 | 2021-06-25 | 江苏擎动新能源科技有限公司 | Drying box for producing membrane electrode for hydrogen fuel cell |
| CN113270610A (en) * | 2021-05-19 | 2021-08-17 | 上海电气集团股份有限公司 | Method for preparing sealing rubber wire on fuel cell electrode plate |
| CN214336754U (en) * | 2021-03-25 | 2021-10-01 | 国家电投集团氢能科技发展有限公司 | Fuel cell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7104545B2 (en) * | 2003-02-18 | 2006-09-12 | Delphi Technologies, Inc. | Method of forming a gasket assembly for a PEM fuel cell assembly |
-
2022
- 2022-05-27 CN CN202210593854.XA patent/CN114864990B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510770A (en) * | 2002-12-23 | 2004-07-07 | ƽ | Sealing structure of fuel battery |
| CN101420037A (en) * | 2008-12-10 | 2009-04-29 | 新源动力股份有限公司 | Metal bipolar plate for proton exchange membrane fuel cell |
| CN101834282A (en) * | 2010-05-24 | 2010-09-15 | 昆山弗尔赛能源有限公司 | Half-cell component of fuel cell and manufacturing method thereof |
| CN103515622A (en) * | 2013-08-02 | 2014-01-15 | 清华大学 | Membrane electrode for fuel cell and preparation method thereof |
| CN108550886A (en) * | 2018-06-07 | 2018-09-18 | 锋源新创科技（北京）有限公司 | A kind of pem fuel cell stack adhering and sealing method |
| CN209658314U (en) * | 2019-04-25 | 2019-11-19 | 重庆宗申氢能源动力科技有限公司 | A kind of integrated tooling of fuel cell membrane electrode assembly |
| CN110400944A (en) * | 2019-06-28 | 2019-11-01 | 上海电气集团股份有限公司 | A kind of encapsulating method and sealing structure of fuel cell membrane electrode and frame |
| CN110474068A (en) * | 2019-08-05 | 2019-11-19 | 上海电气集团股份有限公司 | A kind of preparation method of fuel cell vulcanized sealant |
| CN110581287A (en) * | 2019-09-09 | 2019-12-17 | 上海骥翀氢能科技有限公司 | Metal bipolar plate of proton exchange membrane fuel cell adhesion-free sealing structure |
| CN111224124A (en) * | 2020-03-05 | 2020-06-02 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN111640972A (en) * | 2020-06-02 | 2020-09-08 | 浙江锋源氢能科技有限公司 | Membrane electrode, single cell assembly and fuel cell stack |
| CN213223031U (en) * | 2020-09-02 | 2021-05-18 | 爱德曼氢能源装备有限公司 | Fuel cell seals adhesive deposite device |
| CN213542994U (en) * | 2020-11-03 | 2021-06-25 | 江苏擎动新能源科技有限公司 | Drying box for producing membrane electrode for hydrogen fuel cell |
| CN214336754U (en) * | 2021-03-25 | 2021-10-01 | 国家电投集团氢能科技发展有限公司 | Fuel cell |
| CN113270610A (en) * | 2021-05-19 | 2021-08-17 | 上海电气集团股份有限公司 | Method for preparing sealing rubber wire on fuel cell electrode plate |
Non-Patent Citations (2)
| Title |
|---|
| 密封层厚度对国产材料燃料电池性能影响;杨全勇等;《电池工业》;第16卷(第3期);172-175 * |
| 质子交换膜燃料电池膜电极制备方法及部分改进策略;田甜等;《化工进展》;第32卷(第9期);2077-2084 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114864990A (en) | 2022-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6699613B2 (en) | Fuel cell having sealant for sealing a solid polymer electrolyte membrane | |
| WO2008016384A3 (en) | Uv-curable fuel cell sealants and fuel cells formed therefrom | |
| CN101752587A (en) | Preparation method for integrated fuel battery of metal bipolar plate and sealing piece | |
| CN104552674A (en) | Shoe sole molding method | |
| CN108110278A (en) | A kind of fuel battery double plates encapsulating method and sealing and curing mold | |
| CN102148383A (en) | Hybrid seal application process | |
| CN114864990B (en) | Method for preparing single cell of fuel cell | |
| CN110752387A (en) | Single cell of proton exchange membrane fuel cell and manufacturing method of electric pile thereof | |
| JP2013239316A (en) | Manufacturing method of electrolytic membrane/electrode structure with resin frame for fuel cell | |
| CN114824354B (en) | Method for preparing single cell of fuel cell | |
| CN106393940A (en) | Bipolar plate bonding method for PEM (proton exchange membrane) fuel cells | |
| CN111276714A (en) | Fuel cell assembly and method of assembling the same | |
| WO2004107488A1 (en) | A sealing structure forpolymer electrolyte fuel cell | |
| CN110010923B (en) | Manufacturing method of integrated sealed galvanic pile | |
| CN207705312U (en) | A kind of bipolar plate for fuel cell | |
| CN114188580B (en) | Preparation method of fuel cell membrane electrode | |
| WO2016083307A1 (en) | Fuel cell component and method of manufacturing of a fuel cell component | |
| US20040062976A1 (en) | Process for forming an integral gasket on a bipolar plate for a PEM fuel cell | |
| CN111342076A (en) | Processing method of sealing line | |
| JP3930774B2 (en) | Manufacturing method of fuel cell | |
| CN116014162A (en) | Integrated fuel cell unit and manufacturing method thereof | |
| JP2013235752A (en) | Method for manufacturing cell assembly for fuel cell and cell assembly for fuel cell | |
| CN220491920U (en) | Mould for fuel cell bipolar plate sealing process | |
| CN115881999A (en) | Method for manufacturing single cell and method for manufacturing stack | |
| CN221708744U (en) | Single battery structure of fuel battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |